Automatic closing valve



l,470,8-95 M. T. VANDERVOORT AUTOMATIC CLOS ING VALVE Filed Dec. '7, 192() `,IILIIIIIIIIIIIIIIIIIIIL'I lmnov" Nxl'ord T. Uondavooori Patented oct. ie', i923.

Masas* MILFORD T. vANnEai/oonfr, oF GRAND aArIns, Ii/IICIIIGAN, AssIeNoa`A ro WOLVERINE v, i

BRASS WORKS, or GRAND RAPIDS, MICHIGAN, A oonroItAfrIoN or MICHIGAN.

AUTOMATIC CLOSING vALvE.'

Application medi-December 7, 1920. .y serial No.` 428,839.

i T o all whom t may concern Be it known thatvI, MILFORD 'I. VANDER- f vooR'r, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvementsfin Automatic Closing Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it appertains to make Vand 'use the same.

This invention relates to an automatically closing valve of the same general type disclosed in my Patent No. 1,302,104, issued April 29,1919, having the same general appearance and worked, so far as the operator thereof is concerned, in the same manner,

the construction yinteriorly beingy changed, however, and operable on a different principle. In the present construction, it is designed that the closing Ofthe valve shall be eifected by the head .of the liquid pressing on the valve, and at the same time a check or brakeinterposed against such closing, the degree of such check being substantially in proportion to the head of water, the check or brake being automatically operated through a vacuum which is directlyy in 'proportion to the speed Vof the passageof the water or similar liquid through the valve. It is a primary Obj ect and purposeof the invention to make an automatically operating valve which is controlled on the above described principle. A further object of the invention is to make a valve of thisr character which is simple in construction, eliminating "all springs therefrom,.and one which is readily made and assembled at comparatively low cost. Various other objects andk purposes than those specifically stated will appear as understanding of theinvention is had from the following description, taken in `connec-.

tion with the accompanying drawings, in 45, which, e Y

Fig. `lis aside elevation of the complete construction of closing valvei l F ig. 2 isa vertical section therethrough. Fig. 3 is a fragmentary'enlarged vertical section throughthe upper part of the device showing vthe movable valve .in upperliquid passing position. v

Fig. 4 is a partial front elevation showing Yend of sleeve 5. -.the outer end of the rod 13 and normally occupies the position shown in Figs. land 2. Onturni'ng the handle to substantially hori- ,Y zontalposition, as shown in Fig. 4, the roller vthe handle in its upper valve opening posinon.

Fig. 5 is a view looking against the vacf uum brake operating lever, and

Fig. 6 is a transversesection through the lower portion of the device' and at the air passages therethrough. t

Like reference characters refer to like parts in the diii'erent figuresof the drawings.

In the construction of the device, a hollow casing l is provided open at vits lower and upper ends and an outlet pipe 2 is attached thereto atthe lower end." An inlet couplingy 3 isattached at the upper end ofthe casing, Vuse being made of'any well known type of connecting nut such as indicated at 4. The

under considerable head or 'pressure and bears against the upper end ofthe closing valve set in the upperfend of the casing.

In the construction of the valve,a sleeve 5 'is used adjacent the upper end of which a leather 6 is secured, the samebeing adapted to bear in, its lower position against an upwardly projecting annular rib 'Toast with the casing. A head 8 has a leather or like material washer QsecuredA on its underside whichy in lowermost position is adapted to bear against thel upper end of the sleeve 5. The head 8 is attached to the upper end of a rod 4l() extending downwardly through sleeve 5 and'- equipped with a cylindrical enlargement 11at its'lowercnd which bears against a roller 12 rotatably mounted on an axis set oif from the aXis of a rod 13 whichfy is .rotatably mounted in and extends out-v wardly through a side of the casing as shown. A'fweb 10a is formed with the rod 10 and at its lower end has outwardly extend- 7 fluid lto pass throughy the casing may be car- 'i Vried to the coupling 3 through any suitablev conduit such as a pipe screwed into` the endrr of said coupling 3 and such Huid is usually Y inO- ro'ections 10b coming under the lower A handle 14k is attachedk .to

12 serves toelevate rod`10 and attached headV g 8 and leather 9 above the sleeve; 5, and asr soon as projections 10b are" raised suiiiciently to engage with the lower 4end of sleeve V5, itf

with the attached leather 6 is raised, as

shown in F ig. 3.` In the lower position oi the valveparts, no., liquid can pass by the valve, the greater thefp'ressure of the liquid, the tighterthe valve will close, but as soo-n as the valve parts are raised, liquid will pass, the pressureof the liquidvagainst the valve, however, tending to force the same to lower closing position and turn the rod 13 and attached handle 14 to original position.

-Rod 13 passes through andr isrotatably mounted in a sleeve 15 threaded through a side. of the kcasing 1. The outer end ot the ksleeve is dslotted as at 15a and a ring 16 havingprojections `16a entering the slots is mounted on therod 13 at the outer end of thesleeve. A washer 17 of leather or equivalent material is interposed between the ring 16`and4 the end of thefhandle 14. kPresenlarged head 22 on the end of a rod 23 bears, the/[rod passing through the slot. The rod 23 extends inwardly and is connected itsinner end to a diaphragm 24r ofiiergible :material which covers the outerY side otanair compartment 25. made in the casingbelowthe rod 13. A cylindrical cross member; 26 connects the inner side of the compartment withv the opposite side ofthe casing,A an., opening being made lengthwise of the member 26 andopening at its inner end into' the compartment 254 and at its outer endtothe outside atmosphere. A plug 27 vhaving a reducedopening 28y through it is insertedinto the outer end of the opening through member 26.,v An elbow 29 with an openingentirely` through it is. threaded into thetfopposite inner end of said member 26,i

the ffre'e endf'of the elbow being turned downwardly nearly toA the bottom of the com,- partrnent-Q. A pipe 30 is threaded at its upperv end through the lower side of member`- 26 the passagel through the pipe communicating with the opening through mem# berf26 as shown.

The lever 1 8 and associated mechanismfis covered ,a sheet metal-cover31 attached to thelcasi-ng b y. Vscrews' 'andV` serving to hold V a reinforcing `plate* 32` against the edgesor` the diaphragm 24. Thehandle 14 has a projecting lug 33 which interposes a stop against the movementv of the vhandle beyond horizontal position yby, coming against al stop. Vlug 341projectinginto the path of 'mevemeetofles- VInthe operation, the handle is raised to horizontal position or until stopped by lug 34,'this elevating the valve parts 5 and 8 and permitting the passage of"y liquid through the casing and out at the outet 2. The pressure of the liquid on the valve parts serves to tend to force them to closed position'and return the handle to lower position. As soon as the handle is freed, it will begin to move to lower position. The passage of the liquid by the pipe.L 30 draws air through said pipe which is Supplied from the outside r*through opening 2S` and from the chamber 25. As passa-ge` 23 is, small, the air will be more or less exhausted fromthe comparte ment 2,5 and the pressure against the o`uter side ofthe,diaphragm.y willcause it to be pressed inwardly, thereby acting on lever 18 to force the brake washer againstA the end of handle 14 and check theA return movement of the handle. The greater rthe pressure `ofl water tending to close thevalves,thel greater Y the velocity willr be past the pipe 30xl andthe greater the vacuum in compartment 25 and,A

brake pressure on the handle.i Accordingly, it will be seen lthat there is a compensating actionin the valve. closing operation'fand that the val-ve will not close too vquickly by reason of too heavyA pressure against the valveA parts, a greater ory less checkv being, interposed in proportionv to a greater orless pressure against thevalve parts. Theopening ythrough the plug 27A ,mayn bemade greater or less so as to have the brakel action the handle and valve yp artsfto lower positionlonly after afdesired amount ofy thek liquid ihas passed.

The `construction is vrelatively:kl simple,t easily manufactured, has no parts to.A get out n minor detail of construction may beresorted ,t

to withoutdeparting from thefprincipleV yof the invention. The invention is defined in the` appended claims and I consider my# self entitled to all forms or modifications, in.

structure that come within the fScope ofthe appended claims jdefining the invention. Iclaim: 1. Ina construction ofthe character; de-w diierent positions, one an open position per-A `controlled properlyto perm/it the returnfot scribed,a casingthroughvv which liquids may pass, a valve in Athe casing movable'to two mitting the'passage oiiliquids and the other brake actingl on saidmeans to interpose-.a

check against too rapid return,I wherebylthe valve is checked in its returny romopen; to.

closed position, andmeans automatically of greater or less effectiveness 'in accordance with the greater or less pressure of the acting to operate the brake to make the same liquid passing through the casing.

2. In a construction of the character described, a casing through which 'liquids may pass, a valve in the casing movably mounted to occupy two different positions, one preventing the passageof liquid .through the casing and the other permitting such passage, means for manually moving the valve from said rst position to allow the passage of liquid, said manually movable means tending to return to original position from pressure of the liquid on the valve, a brake acting on the manually movable means, and

means acting to set the brake against the handle, said means being rendered effective by the passage of liquid-through thecasing and increasing with the increasing velocity of passage of the liquid.

8. In a construction of the character described, a casing through which liquids are adapted to pass, a valve movably mounted in the casing to take two different positions, one a closed position preventing the passage of liquid and the other an'V open position permitting the passageoi` liquid, said valve being normally heldclosed by pressure of the liquid against it, manually operated means fory moving the valve to open position, a brake arranged to act against said manually operated means, a diaphragm covering an enclosed air chamber in the casing, means connected to the diaphragm and operatively associated with the brake for setting the brake against the manually operated means on ,movement of the diaphragm into the air chamber, and means operated by the passage of liquidthereb Y for exhausting air Jfrom the chamber anc moving said diaphragm to set the brake.

4. In a construction of the character` described, a casing through which liquids are adapted to pass, a valve movably mounted in the casing to Vtake two dilierent positions, one a closed position preventing the passage of liquid and the other an .open position permitting the passage of liquid, said valve being normally held closed 'bv the pressure of liquid againstfit, a manually operated handle, means operated by the handlefor moving theyvalve to open position, a 'brake arranged to act against the handle,` a dia- Y phragm covering an enclosed air chamber inl the casing, means connected to the diaphragm and operatively associated with the brake for setting the same against the handle on movement of the diaphragm into the air chamber, vand an outlet conduit tothe air chamber extending downwardly in the casing and by which the liquid passes Awhereby air is drawn from the air chamber Vand the diaphragm moved to set the brake against the handle and check its return to valve closing position.

5. Ina 'construction of the character described, a casing through which liquids may pass, a valve in the casing movably mounted to occupy two different positions, one a closed position preventing the passage of liquids, andthe other an open position allowing such passage, said valve being normally held in closed position by the pressure of liquid against it, a manually operated Vrhandle, means actuated by the handle and associated with the valve to move the valve from closed to open position on turning the handle to upper position, a brake associated with the handle, said brake being normally ineffective, a diaphragm covering an enclosed air chamber in the casing, means connected to the diaphragm and operatively associated with the brake to press the brake against the handley on movement of the diaphragm into the air chamber, a member formed with the casing between' the inner side of the air chamber and the opposed side ot the casing, said member having an opening therethrough, a plug having a reduced opening through it inserted in the outer end of the opening in said member, an elbow having a passage therethrough inserted into the inner end of said opening through the member, said elbow extending downwardly intothe air chamber, and a pipe inserted through the under side of said member, said pipe having a passage therethrough communicating with the opening through said member, substantially as and forgthe Vpurposes described.

6. In a construction of the character described, a casing through which liquids are adapted to pass, a valve in the casing `mounted to take a closed 4position preventpermitting such passage, said valve being f normally held in closed position bythe pressure ot liquid against it, means for manually moving the valve to open position, and means frictionally retarding the movement of the valve to closed position, the friction of said means being progressively increased in'proportion yto the velocityv ot passage oi" liquid through the casing and in proportion kto the pressure of the liquid against the valve tending to'close the same.

ture.

MILFORD T. VANDERVDORT,l

In testimony whereof I aiiix my signa-* 

